Analysis
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max time kernel
55s -
max time network
57s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
05/10/2022, 08:48
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://crls.pki.goog/gts1c3/QqFxbi9M48c.crl
Resource
win10-20220812-en
windows10-1703-x64
9 signatures
150 seconds
General
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Target
http://crls.pki.goog/gts1c3/QqFxbi9M48c.crl
Score
1/10
Malware Config
Signatures
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision firefox.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings firefox.exe -
NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\Downloads\QqFxbi9M48c.crl:Zone.Identifier firefox.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4516 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2500 firefox.exe Token: SeDebugPrivilege 2500 firefox.exe Token: SeDebugPrivilege 2500 firefox.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 2500 firefox.exe 2500 firefox.exe 2500 firefox.exe 2500 firefox.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 2500 firefox.exe 2500 firefox.exe 2500 firefox.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2500 firefox.exe 2500 firefox.exe 2500 firefox.exe 2500 firefox.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2372 wrote to memory of 2500 2372 firefox.exe 66 PID 2500 wrote to memory of 4796 2500 firefox.exe 68 PID 2500 wrote to memory of 4796 2500 firefox.exe 68 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 3624 2500 firefox.exe 70 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71 PID 2500 wrote to memory of 4220 2500 firefox.exe 71
Processes
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" http://crls.pki.goog/gts1c3/QqFxbi9M48c.crl1⤵
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" http://crls.pki.goog/gts1c3/QqFxbi9M48c.crl2⤵
- Checks processor information in registry
- Modifies registry class
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2500.0.1754819860\1735898704" -parentBuildID 20200403170909 -prefsHandle 1512 -prefMapHandle 1504 -prefsLen 1 -prefMapSize 219938 -appdir "C:\Program Files\Mozilla Firefox\browser" - 2500 "\\.\pipe\gecko-crash-server-pipe.2500" 1612 gpu3⤵PID:4796
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2500.3.818941446\1771958263" -childID 1 -isForBrowser -prefsHandle 2244 -prefMapHandle 2240 -prefsLen 156 -prefMapSize 219938 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 2500 "\\.\pipe\gecko-crash-server-pipe.2500" 2252 tab3⤵PID:3624
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2500.13.322096293\910529124" -childID 2 -isForBrowser -prefsHandle 3708 -prefMapHandle 3704 -prefsLen 7643 -prefMapSize 219938 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 2500 "\\.\pipe\gecko-crash-server-pipe.2500" 3720 tab3⤵PID:4220
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" cryptext.dll,CryptExtOpenCRL C:\Users\Admin\Downloads\QqFxbi9M48c.crl1⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:4516
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
12KB
MD546628c982aaf1063fb15c63a22623293
SHA11ffafe0d29208f3dd4f2760827adccf4197ec628
SHA256c63d0a6ff1b60973afecab89348c480d0b40f480d10d0329a9682607c895fdf5
SHA51277479aa0a36ee2a63bf08f9d8e887724964084292e6f5dafd8d4d5ed619051a1c50e00e12135d6c42647999de1114bab2aaaf0788aa2c9193a8ca4be06c4f4a3